We look at the division of 20979885 by 636 
Let's see how many times 636 fits into 20979885.

Advancing to step 1:
636 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 636

Moving on to step 2:
636 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Append the next digit (9) from the dividend to 20 and continue with: 209 / 636

Advancing to step 3:
If we divide 209 by 636, we get 0 and a remainder of 209.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 209 to get 209.
Include the next digit (7) from the dividend after 209, then repeat: 2097 / 636

Moving on to step 4:
If we divide 2097 by 636, we get 3 and a remainder of 189.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 1908 away from 2097, we end up with 189.
Include the next digit (9) from the dividend after 189, then repeat: 1899 / 636

On to step 5:
636 can be fit into 1899 2 times, resulting in a remainder of 627.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Subtract 1272 from 1899 to get 627.
Take the next digit (8) from the dividend and append it to 627, then repeat: 6278 / 636

Let's proceed to step 6:
6278 divided by 636 is 9 with a remainder of 554.
Record the quotient 9 as the next digit in the result. 
Result so far: 329.0
The remainder is 554 after subtracting 5724 from 6278.
Take the next digit (8) from the dividend and append it to 554, then repeat: 5548 / 636

Advancing to step 7:
When dividing 5548 by 636, we get 8 with a remainder of 460.
Put 8 as the next digit of the answer. 
Result so far: 3298.0
If we take 5088 away from 5548, we end up with 460.
Take the next digit (5) from the dividend and append it to 460, then repeat: 4605 / 636

Moving on to step 8:
The number 636 fits into 4605 7 times, leaving a remainder of 153.
The next digit of our result is 7. 
Result so far: 32987.0
If we take 4452 away from 4605, we end up with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Advancing to step 9:
If we divide 1530 by 636, we get 2 and a remainder of 258.
The number 2 becomes the next digit in our result. 
Result so far: 32987.2
If we take 1272 away from 1530, we end up with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Moving on to step 10:
2580 divided by 636 is 4 with a remainder of 36.
The next digit of our result is 4. 
Result so far: 32987.24
If we subtract 2544 from 2580, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 11:
636 can be fit into 360 0 times, resulting in a remainder of 360.
Use 0 as the next digit of our solution. 
Result so far: 32987.24
If we take 0 away from 360, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 12:
The number 636 fits into 3600 5 times, leaving a remainder of 420.
Record the quotient 5 as the next digit in the result. 
Result so far: 32987.2405
Deduct 3180 from 3600 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 13:
4200 divided by 636 is 6 with a remainder of 384.
Put 6 as the next digit of the answer. 
Result so far: 32987.24056
If we take 3816 away from 4200, we end up with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Let's proceed to step 14:
The number 636 fits into 3840 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 32987.240566
Subtracting 3816 from 3840 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 32987.240566 and a remainder of 2.4e-06.